Math Stuff -- Kevin Walker

New TQFT notes:TQFTs [version 1h, 11 May 2006].
This is an early, incomplete draft.
There are notational (and other) inconsistencies, and some parts have not
been proof-read.
Still, it's probably better than nothing.

Higher categories, colimits, and the blob complex
(with Scott Morrison);
a more concise, less detailed version of the longer blob paper;
to appear in Proceedings of the National Academy of Sciences,
draft version available here

An Extension of Casson's Invariant,
Princeton University Press, 1992, ISBN 0-691-02532-0,
Amazon
or
P.U.P.
(One of these days I'll make a PDF version available here.
In the meantime, someone donated this DjVu version.)